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Cytochrome P450-generated metabolites derived from ω-3 fatty acids attenuate neovascularization

Item Type:Article
Title:Cytochrome P450-generated metabolites derived from ω-3 fatty acids attenuate neovascularization
Creators Name:Yanai, R. and Mulki, L. and Hasegawa, E. and Takeuchi, K. and Sweigard, H. and Suzuki, J. and Gaissert, P. and Vavvas, D.G. and Sonoda, K.H. and Rothe, M. and Schunck, W.H. and Miller, J.W. and Connor, K.M.
Abstract:Ocular neovascularization, including age-related macular degeneration (AMD), is a primary cause of blindness in individuals of industrialized countries. With a projected increase in the prevalence of these blinding neovascular diseases, there is an urgent need for new pharmacological interventions for their treatment or prevention. Increasing evidence has implicated eicosanoid-like metabolites of long-chain polyunsaturated fatty acids (LCPUFAs) in the regulation of neovascular disease. In particular, metabolites generated by the cytochrome P450 (CYP)-epoxygenase pathway have been shown to be potent modulators of angiogenesis, making this pathway a reasonable previously unidentified target for intervention in neovascular ocular disease. Here we show that dietary supplementation with {omega}-3 LCPUFAs promotes regression of choroidal neovessels in a well-characterized mouse model of neovascular AMD. Leukocyte recruitment and adhesion molecule expression in choroidal neovascular lesions were down-regulated in mice fed {omega}-3 LCPUFAs. The serum of these mice showed increased levels of anti-inflammatory eicosanoids derived from eicosapentaenoic acid and docosahexaenoic acid. 17,18-epoxyeicosatetraenoic acid and 19,20-epoxydocosapentaenoic acid, the major CYP-generated metabolites of these primary {omega}-3 LCPUFAs, were identified as key lipid mediators of disease resolution. We conclude that CYP-derived bioactive lipid metabolites from {omega}-3 LCPUFAs are potent inhibitors of intraocular neovascular disease and show promising therapeutic potential for resolution of neovascular AMD.
Keywords:Choroidal Neovascularization, Immune Cell Recruitment, PPAR{gamma}, Adhesion Molecules, Epoxy-Metabolites, Animals, Mice
Source:Proceedings of the National Academy of Sciences of the United States of America
ISSN:0027-8424
Publisher:National Academy of Sciences (U.S.A.)
Volume:111
Number:26
Page Range:9603-9608
Date:1 July 2014
Official Publication:https://doi.org/10.1073/pnas.1401191111
PubMed:View item in PubMed

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